private void GenerateMaze()
{
MazeNode startingNode = grid[0, 0];
List <WallNode> openSet = new List <WallNode>();
HashSet <MazeNode> closedSet = new HashSet <MazeNode>();
openSet.AddRange(startingNode.Walls);
closedSet.Add(startingNode);
while (openSet.Count != 0)
{
int randomIndex = UnityEngine.Random.Range(0, openSet.Count);
WallNode currentWall = openSet[randomIndex];
MazeNode neighborOfCurrentWall = currentWall.Neighbor;
if (neighborOfCurrentWall != null && !closedSet.Contains(neighborOfCurrentWall))
{
currentWall.Parent.RemoveWall(currentWall);
int oppositeWallToRemove = -(int)currentWall.Orientation;
neighborOfCurrentWall.RemoveWall(oppositeWallToRemove);
openSet.AddRange(neighborOfCurrentWall.Walls);
closedSet.Add(neighborOfCurrentWall);
}
openSet.Remove(currentWall);
}
}
//Two overloaded remove wall functions , one for when we already have the wall we want to remove,
//the other for when we know only the orientation of the wall that should be removed.
//Helps in creating connections(paths) between nodes faster.
public void RemoveWall(WallNode toRemove)
{
walls.Remove(toRemove);
}